MDL-22060 fixed $a in string to match new rules

MDL-22060 fixed $a in string to match new rules

AMOS START
 REM fixed $a[] in [auth_dbdeleteuser, auth_db]
 REM fixed $a[] in [auth_dbinsertuser, auth_db]
 REM fixed $a[] in [auth_dbreviveduser, auth_db]
 REM fixed $a[] in [auth_dbsuspenduser, auth_db]
 REM fixed $a[] in [auth_dbupdatinguser, auth_db]
AMOS END